Shutoff nozzle



May 26, 1942. J. w. GRANT ETAL SHUT-OFF NOZZLE Filed March 12, 1941 QMmm m W N Tm R m m vNfiT mN A R WH &,Y a

lllll Patented May 26, 1942 pr sreras rer orric Jordan W. Grant,Portsmouth, Va.., and Henry M.

Hunt, Wooster,- Ohio, assignors to AkronBrass V Manufacturing Company,1110., Wooster, Ohio,

a corporation of Ohio Application ach 12, 1941, Serial No. 382,956

'2 Claims. (.01. 251-113) This invention relates to improvements innozzles and more particularly to shut-offnozzles of the type commonlyemployed with a fire hose;

It is essential in fire fighting'equipmentj to,

eliminate the disturbance in the stream caused by the formation ofannular recesses or projections within the discharge end of the nozzle.When the stream flows over the recesses or projections within the nozzlethe column of water discharged therefrom is characterized with spentdrops, spray or Spindrift. On the other hand if the inner surface of thenozzle is uninterrupted a sharply defined column free from spray may bedischarged therefrom with the result that such column may be directedupon the objective with greater force and less danger of cross winddeflection. v

One of the objects of the present invention is to construct a shut-offnozzle comprising a plurality of adjustable parts arranged in seated relation with each other to provide a smooth and uninterrupted surfacetherethrough irrespective of adjustments therebetween.

Another object of the invention is to provide a shut-01f nozzle having asleeve disposed in the discharge end thereof with a conical nozzle tipengaging the outer end of the sleeve and nozzle to facilitate thedischarge of a fluid stream free from spindrift.

Further objects of the invention are to provide a shut-off nozzle whichis reliable and efficient in service, economic of manufacture, simpleof,

ancillary to the foregoing and the manner in which all the variousobjects ar realized will appear in the following description, whichconsidered in connection with the accompanying drawing, sets forth thepreferred embodiment of the invention.

Referring to the drawing wherein the preferred embodiment of theinvention is illustrated:

Fig. 1 is a side view of the shut-01f nozzle and nozzle tip embodyingthe present invention, a portion of the nozzle and nozzle tip beingbroken away and shown in section in the interest of clarity;

Fig. 2 is an elevational view of a fragmentary portion of the nozzlecasing with a portion thereof shown in section to illustrate theconstruction thereof;

Fig. 3 is an elevational view of a sleeve with a portion thereof shownin section;

Fig. 5 is an elevational View of a collar for retaining the packingringin place, a portion of the collar being shown'in section; and 'Fig. 6 isan elevational view of a fragmentary portion of- Ithe nozzle tip with aportion thereof shown-in section.

Referring to Fig. 1,-there is shown a shut-01f hose nozzlecomprising acasing in having axially aligned inlet and outlet ports II and I 2 witha ball valve I 3 interposed therebetween. The valve is secured to ashaft which has a handle [4 afiixed to one endthereof for rotating theball valve to its open or closed position. The ball valve employedherein is of the form disclosed in Patent No. 1,746,609 to John C.Schellin. A detailed description thereof is, therefore, deemedunnecessary apart from such general reference as may be necessary for acomplete understanding of the invention.

The outlet port l2 has a sleeve l6 disposed therein with theinner end I!of the sleeve formed 7 for intimate engagement with the globular surfaceof the ball valve IS. The inner end i! of the sleeve is ground to fitsnugly upon the ball valve l3 so as to prevent the leakage of fluidtherebetween when the valve is in either its open or closed position.The internal diameter of the sleeve 16 is equal to the diameter of thefluid port through the ball valve l3 to provide a smooth anduninterrupted surface for a stream flowing through the nozzle. Theexternal diameter of the outer end portion of the sleeve I6 is slightlyless than the external diameter of the valve engaging end portion ofthe. sleeve to provide a shoulder 20 to seal the nozzle against theleakwith a portion thereof shown in section;

age of any fluid therethrough or seepage between the ball valve [3 andend I! of the sleeve result ing from wear.

A tapered nozzle tip 25 formed with an enlarged end 26 is threaded onthe casing l0. The. enlarged end 26 is provided with a beveled inner fzle tip 25 upon the casing l0 urges the end I1 of the sleeve l6 intoengagement with the surface of the ball valve I3 and prevents the escapeof fluid therebetween. The internal diameter of the nozzle tip 25, atits juncture with the beveled end of the sleeve I6, is equal to theinternal diameter of the sleeve so that a smooth, continuous anduninterrupted fluid passageway is provided through the shut-oft nozzleand nozzle tip.

In the assembly of the shut-ofi hose nozzlethe seating of the beveledinner surface of the nozzletip upon the complementary surface of the endof the sleeve provides a smooth, close fit therebetween, thus causingthefluid stream to flow through the shut-off nozzle and nozzle tip withoutdisruption or agitation.

Although the foregoing description is necessarily of a detailedcharacter, in order that the ball valve I3 is' mounted within the casing[0 in tween. The enlarged end 26 of the nozzle tip 25 is then threadedupon the external surface oi the casing III with the beveled innersurface engaging the outer end 'of the sleeve l6 forretaining the endportion l'lthereof in intimate engageinvention may, be completely setforth, it is to be understood that the specific terminology is notintended to be restrictive or confining, and that various rearrangementsof parts and modifications of the detail may be resorted to withoutdeparting from the scope or spirit of the invention as herein claimed.

We claim: r 1. In a shut-off hose nozzle embodying a casing' having abore therethrough, a ball valve mounted therein, a cylindrical tubularmember ment with the spherical surface of theball valve to prevent'theleakage of fluid therebetween. The ball valve I3 may be rotated toeither its open or closed position upon the actuation of the handle Mfor. controllingthe passage of. fluid through the shut-off nozzle andnozzle tip.

engaging said ball valve and terminating at one end of-said bore, aledge formed on the periphery of said cylindrical member intermediateits ends, a shoulder on said bore adjacent said ledge, a

ring encircling said member and seated on said ledge and shoulder, andmeans within said bore engaging said ring to seal said borewith respectto said member.

2. Inta shut-off valve embodying a casing have ing a bore therethrough,a ball valve mounted therein, a cylindrical tubular member in said borehaving one end seated on said ball valve with 1 the other endterminating at an end of said bore, a ledge formed on the periphery ofsaid tubular The provision of a sleeve or lininghaving a bore equal tothat of the fluid port in the ball valve provides a smooth, continuousand'uninterrupted conduit through the shut-off nozzle for the passage ofa fluid stream. The smooth 'and uninterrupted passagewayextendingthrough the shut-off nozzle overcomes any tendency of thestream to become agitated and insures the. disor tangential jets orspray. Furthermore, the

charge of the fluid stream without any spindrift member intermediate itsends, a shoulder on said bore adjacent said ledge, a packing ring seatedon said ledge and shoulder, a collar encircling said tubular member andthreaded within said bore, said collar engageable with said ring to sealsaid bore with respect to said tubular member.

. JORDAN W. GRANT.

HENRY M. HUNT.

